Question

In the expansion of `(e^(7x)+e^(3x))/(e^(5x))` the constant term is

Answer 1

Answer:
We have
`(e^(7x)+e^(3x))/(e^(5x))=e^(2x)+e^(-2x)=2(1+(2x)^(2)/(2!)+(2x)^(4)/(4!)+….)`
`therefore` constant term =2